ACAR (Aluminium Conductor Alloy Reinforced)

ACAR Conductor: The High-Performance Upgrade for Power Distribution

When your project needs more strength than pure aluminium conductors (AAC) but doesn’t require or suit steel-cored options, ACAR (Aluminium Conductor Alloy Reinforced) is the perfect solution. Crafted from high-purity aluminium blended with magnesium, silicon, and iron alloy elements—strengthened via heat treatment—this conductor balances lightweight flexibility, excellent conductivity, and robust durability. It solves the pain points of pure aluminium (low tensile strength, high-temperature softening) while avoiding the electrochemical corrosion risks of steel-cored conductors, making it a trusted choice for medium to high-voltage power transmission.

Whether you’re upgrading urban grids, powering renewable energy bases, or wiring coastal areas, ACAR delivers consistent performance that cuts maintenance costs and boosts project efficiency — and is supplied worldwide by Yingshang Aluminum Industry as a reliable bare conductor supplier.

Aluminum conductor alloy reinforcement is a high-strength conductive material made by adding alloy elements such as magnesium, silicon, and iron to high-purity aluminum as the matrix, and strengthening it through heat treatment process. Its core advantage is to improve mechanical strength and heat resistance through alloying while maintaining the lightweight and easy to process characteristics of aluminum material, solving the pain points of low tensile strength and easy softening at high temperatures of pure aluminum conductors.

What Is ACAR Conductor?

ACAR Conductor, short for Aluminium Conductor Alloy Reinforced, is a high-strength conductive material engineered for demanding power distribution scenarios. Its base is high-purity aluminium, enhanced with magnesium, silicon, and iron alloy elements, then strengthened through a precision heat treatment process.

Designed with a concentric stranded structure, ACAR retains aluminium’s natural advantages (lightweight, easy processing) while significantly improving mechanical strength and heat resistance. It’s the ideal replacement for traditional pure aluminium conductors in projects requiring longer spans, higher current loads, or corrosion resistance.

Core Structure of ACAR Conductor

Every ACAR conductor is built for stability, conductivity, and long-term reliability. Here’s a detailed breakdown of its structure:

Key Features & Benefits of ACAR Conductor

ACAR stands out for its practical, project-ready advantages that directly address real-world challenges:

1. Exceptional Mechanical Strength

• Tensile strength: 160–240MPa – withstands higher installation tension than pure aluminium conductors.
• Suitable for spans of 100–200m – reduces the number of towers needed, cutting engineering costs.

2. Heat Resistance & Efficient Conductivity

• Maintains ≥70% strength retention at 200℃ high temperature – ideal for high-current transmission in hot environments.
• Conductivity: 55%–61% IACS – current-carrying capacity is 15%–20% higher than pure aluminium conductors.
• Low power loss: DC resistance is close to pure aluminium conductors of the same cross-section, meeting medium to high-voltage transmission requirements.

3. Corrosion-Proof & Lightweight

• No steel core – eliminates electrochemical corrosion risks (a common issue with steel-cored conductors).
• 20%–30% lighter than steel-cored aluminium conductors – reduces tower load and eases installation.

4. Versatile & Easy to Install

• Retains aluminium’s lightweight and easy-processing characteristics – compatible with standard installation equipment.
• Stable performance across diverse environments – from urban areas to coastal regions.

Electrical Performance

ACAR conductor delivers reliable electrical performance for demanding applications:

• DC Resistance: Similar to pure aluminium conductors of the same cross-section, ensuring low transmission loss.
• Voltage Withstand: 10kV class ≥42kV; 110kV class ≥230kV (no breakdown during 1-minute power frequency withstand voltage test).
• Electromagnetic Compatibility: Uniform surface electric field distribution – no obvious corona at 35kV and below, minimizing interference to surrounding equipment.

Installation & Construction Guidelines

To ensure safety and optimal performance, follow these key parameters:

• Recommended Installation Temperature: -10℃ ~ 40℃. Avoid severe bending at low temperatures to prevent damage.
• Tension Control: Construction tension must not exceed 40% of the conductor’s tensile strength – prevents permanent deformation.

Applications: Where ACAR Conductor Excels

ACAR’s unique combination of strength, heat resistance, and corrosion protection makes it ideal for:

1. Urban Distribution Network Upgrades

Replace old 10kV–35kV pure aluminium conductors. Its high tensile strength adapts to longer spans required by urban road widening, improving grid reliability without full infrastructure overhauls.

2. Renewable Energy Distribution

Internal collection lines for photovoltaic power stations and wind farms. Heat resistance ensures stable performance during high-temperature summer operations, supporting high-current transmission.

3. Coastal Area Power Lines

Corrosion-resistant alloy formula resists salt spray erosion – reduces maintenance frequency and extends service life in coastal city distribution networks.

4. High-Rise Building Power Supply

Used as bus duct conductors for elevators, central air conditioning, and other high-power equipment. Lightweight all-aluminium structure reduces building load, and corrosion resistance ensures long-term safety.

Standard Specifications 

Choose from a wide range of cross-sections to match your project needs. Contact us for the full, detailed specification sheet.

Quality Certifications & Manufacturing Standards

We adhere to global industry standards to ensure every ACAR conductor meets strict quality and performance requirements:

• IEC 61089 (International Electrotechnical Commission)
• ASTM B230 (American Society for Testing and Materials)
• GB/T 1179 (Chinese National Standard)
• ISO 9001:2015 Quality Management System Certification

Rigorous Production & Inspection Process

1. Raw material testing: Verify the purity of aluminium and alloy elements before processing.
2. Stranding control: Monitor tension closely to avoid over-stretching monofilaments (which causes excessive DC resistance).
3. Surface inspection: Ensure conductors are smooth, bright, and free of oil stains, cracks, or mechanical damage.
4. Joint standards: Welding allowed on single monofilaments – same-layer joints ≥300mm apart; same-monofilament joints ≥15mm apart – all joints are smooth and rounded.
5. Final testing: Check tensile strength, conductivity, resistance, and weight per meter before delivery – only qualified products leave our factory.

Customization & Technical Support

We understand every project is unique. We offer:

• Custom cross-sections, monofilament diameters, and stranding configurations.
• Expert technical consulting on installation, tension control, and application matching.
• On-site guidance for complex projects (e.g., urban grid upgrades, coastal line installations).
• Fast global delivery and responsive after-sales service.

Why Choose Our ACAR Conductor?

High Strength & Heat Resistant: Withstands 100–200m spans and 200℃ high temperatures – reliable in demanding environments.

Corrosion-Proof: No steel core eliminates electrochemical corrosion – ideal for coastal and humid areas.

Efficient Conductivity: 55%–61% IACS conductivity with low power loss – cuts energy costs.

Lightweight & Easy to Install: 20%–30% lighter than steel-cored conductors – reduces tower load and labor costs.

Quality Guaranteed: Complies with international standards and strict factory inspections.

Contact Us Today

Ready to upgrade your power distribution system with high-performance ACAR conductor? Fill out the form below or contact us directly for a free quote, full specification list, or technical consultation. Our team will respond within 24 hours!